34 Factory
Origin
Fox introduced the 34 chassis in 2013 (designed at Fox Factory in Scotts Valley/Watsonville, California) to fill the gap between the lightweight 32 XC fork and the burly 36 enduro fork — a dedicated trail fork named for its 34mm stanchion diameter, with 'Factory' denoting the gold Kashima-coated top tier. The launch FLOAT CTD damper was widely criticised and gave way to FIT4 in 2017, then GRIP2 in the 2022 chassis redesign, and finally the lighter GRIP X for 2025. Across a decade it became the default fork on premium trail bikes (Trek Remedy, Giant Trance, Yeti SB130), competing chiefly with the RockShox Pike. In March 2025 Fox reshuffled the line: the new 34 SL replaced the 34 SC for XC/downcountry while the standard 34 Factory trail continues on GRIP X.
Specifications
- Weight
- kg
The verdict
- GRIP X damper (2025) transformed the 34 into a genuinely good trail fork — sensitive yet supportive, with a usable Firm mode for climbs; major step up from the old GRIP2
- Light for its class at 1,686 g claimed — roughly 157g lighter than a RockShox Pike at 140mm, and 600g+ lighter than a Fox 36 for riders who don't need enduro stiffness
- FLOAT EVOL spring plus lower-leg bypass channels: consistent mid-stroke support and reduced pressure ramp, so the fork reaches full travel reliably
- Forward-jutting arch redesign (2022) gives clearance with modern short-offset trail head tubes; organic lower-leg shape balances stiffness and weight
- Versatile travel and variant spread: 130/140mm trail plus the 110-130mm 34 SL covers everything from XC marathon to light all-mountain
- 34mm stanchions flex under sustained hard braking and rough chunder — not as stiff as a 36; aggressive/heavy riders feel it on steep rough descents
- 29" only since 2025 — no 27.5" option remains
- GRIP X lacks high-speed rebound adjustment (only the pricier GRIP X2 has it)
- At 140mm it borders on underpowered versus a RockShox Pike for aggressive all-mountain use
- Standard 34 Factory trail niche is narrowing in 2025-2026: the 34 SL takes XC/downcountry and the 36 SL takes lighter trail, squeezing it from both sides
Who it’s for
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